This assembly is designed to drop into Griffin Revolution pistol silencers or the Griffin Optimus, and allow the silencer to interface with a 3-lug muzzle. This is the ultimate way to attach your suppressor to a large variety of host guns!

Things to be aware of:

• There are two standard sized HK patterned 3-lug systems: 9mm and .40/10mm. 
• The 9mm system has a smaller diameter and neither are cross compatible to the other system. 
• Make sure you buy the correct size mount for your host firearm (if you don't know which one you need, give us a call!). 
• The 9mm coupler will fit inside of the Revolution 45 for use on 9mm platforms. 
• Do not buy the .40/10mm coupler for your Revolution 9. 
• The Revo 9 does not support any of the calibers that use the larger diameter mounts.

These Couplers will run on any standard HK patterned 3-lug barrel as well as the Griffin 3-Lug muzzle devices.